Yardangs form from
A) sedimentary rock, which is strong enough to stay standing but soft enough to abrade.
B) metamorphic rock, which is strong enough to withstand extensive abrasion without being completely eroded and swept away.
C) igneous intrusions, which are left standing after sedimentary rock around it has been eroded.
D) volcanic rock, which is soft and easily abraded.

Question

Quizplus · Accepted Answer

Yardangs are streamlined hills or ridges formed by wind erosion of sedimentary rock. The rock needs to be strong enough to stand but soft enough to be eroded by wind abrasion. Metamorphic, igneous, and volcanic rocks are generally too hard to be eroded into yardangs by the wind.

Yardangs Form from